Photoelectrically controlled pattern apparatus



Se t. 3, 1931.1 K: NAKANISH, 1,822,306

PHOTOELECTRICALLY CONTROLLED PATTERN APPARATUS Filed Nov. 5, 192

I J u? Patented Sept. 8,1931

. UNITED STATES PArENro ncE xmnao nexmrsfir, or ruxuoxa, .mmuw rnoronmcrmcmr CONTROLLED rarrm APPARATUS Application llled November 5, 1926.- Serial No. 146,48F

My invention relates to a photoelectrically parent wall 3 carries a pattern sheet 4 which controlled apparatus for shedding motion in consists of a transparent portion and an looms for weaving figured fabrics, and is also opaque portion forming a desired figure, applicable to machines for cutting figured and 1 said wall 3 is rotated step by-step cards used in jacquard and dobby machines. by asuitable mechanism not shown in he invention comprises a p'hotoelectrlc dethe drawings. A lens 5 is inserted betweenvice controlled by the light projected through the source of light 1 and the transparent wall the pattern sheet, a circuit including said 3, and a lens 6 is inserted between the transphotoelectric device and a source of current, parent wall 3 and the photoelectric device '2. m circuits each including amagnet, a plurality Ihe source of light 1 is enclosed within a reof .annularly arranged contacts each con- .flector box 7. The aforementioned parts are nected with respective magnet, and a contact arranged in such a manner that the light arm adapted to be moved step-by-step in synpassing through the lens 5 is focussed on the chronism with the movement of the attern pattern 4 and the transparent wall 3, and that 15 and adapted to successively engage w1th said the said projected light is passed through the annularly arran ed contacts. A As the photo-' 1ens 6 and is focussed on the plate of the phoelectric device, prefer toem loy a phototoelectric device 2. On the outer side of the electric cell sel niuni cell, p oto-Galvanlc attern 4, there is provided a window plate 0, 4 cell, Thallofied cell,-or; the like; The object in order to guide the light from the lensv 5 go of the invention is to provide a PlIOtOGlGCtIlr to the pattern surface. v v

cally controlled system for looms and for card One pole of'the photoelectric device 2 is cutting m h n which may be operated connected with one pole of the source of curefi'ectivelyin an economical manner. rent 8, and the other pole ofthephotoelec:

he accompanying drawings illustrate tric device 2 is'connected withone terminal 25 my invention, in which 10 of the amplifier 9. The other ole of the Figure 1? is a diagrammatic view' of the source ofcurrent8is connected wit the other apparatus according to my invention applied terminal 11 of the. amplifier 9. to the loom-for weavin figured fabric, in- An insulating plate 13 is provided on the cluding the electrical connection, top thereof with a plurality of contacts 12,

o Fl l lle 2 shows a seetlo ref p t f and-in'said insulating plate 13 is journalled a sheddlng motlon, shaft 14 which is adapted to be rotated step-' Figure 3 is a detail showing in sodium the by-step in synchronism with the transparent light controlled device, in which light is wall'3, The shaft l4 carries secured at its projected to the photoelectric device through upper end'a contact arm 15 which is adapted the pattern, p to successively engage with the contacts 12. 5

ig 4 i a modified m f he lig Secured to the lower end of theshaft 14 is a controlled device in-which light is reflected slip ring 16 cooperating with the'contact and. directed by the pattern sheet to the brush 18 which is secured to the lower part of photoelectric device,'and the stationary table 17. 'In the drawings, the

4 Figure 3 isa plan view of the insulating insulating plate 13 .is shown as composedjof a -ing with said annularly arranged contacts. desired, the insulatin plate may be According tom invention, arranged (zip 0- formed into a cylindrical s ape and the con 5 site to asource 0 light 1 there is provi e a tacts 12 may be arranged on the periphery of photoelectric device 2. Arranged between the same. the source of light 1 and the photoelectric de- Witheach ofthe annul'arly arranged convice 2 is a transparent wall 3 which-may be tacts 12 on the insulating disc 13 is connectedformed into a cylindrical shapeor into an a Fespective one of the magnets 19 which are 50 endless band or into a flat plate. Said tran'sadapted to act upon the hooks of the shedding 10o current 20 is closedby motion in the loom or u on the perforating rod in case of the car cutting machines. With the contact brush 18 is connected one pole of the source of current 20, of which the other pole is connected with the terminal 22 of the relay 21. Each magnet 19 is connected in parallel with the conductor leading to the terminal 23 of the relay 21. The relay 21 is connected with the amplifier 9 by means of the terminals 24, 25, 26 and 27, in such a mannor that the circuit including the source of the closed circuit of the source of current 8.

As the photoelectric device 2 in my invention any cell may be employed such as photoelectric cell, selenium cell, photo-Galvanic cell, Thallofied cell, or the like. As the pattern sheet 4, any film or glass plate may be employed on which is painted or otherwise drawn a desired design. Or if desired a photographed film or glass plate may be employed.

In case of weaving different colored fabrics, the transparent wall 3 may be divided into a number of sections, and a pattern for each respective colored figure may be applied to each section.

The operation of the invention briefly 18 as follows:- The is passed through the lens 5 and is focussed on the transparent portion of the pattern 4, and then passing through the lens 6 it is projected u on the plate of the photoelectric device 2, w iereupon the current flowi n g through the circuit of the source of current 8 is intensified by the amplifier 9, and by the action of the relay 21 the circuit of the source of current 20 is closed, energizing that magnet 19 which is included in the circuit leading to the contact 12 at the time engaging with the contact arm 15, thus the hook pertaining to that energized magnet 19 is by. On the contrary, when the light from the source 1 is projected to the opaque portion of the pattern vice 2 will not be brought into action. Therefore the current flowing through the circuit of the source of current 8 is actuate the relay 21. Thus, the magnet 19 connected with that contact 12 which is at the time engaged by thecontact arm 15 is in the open circuit of the source of current 20, so that the hook pertaining thereto will not be acted upon and will maintain its normal position. In Figure 1, the right hand one of 19, and other two hooks are shown as maintaining the normal position. The hooks are pushed back to their original position by any suitable means, such for contrary to the arrangement shown in Figlight from the source 1 4, the photoelectric denot enough to ure 2, the light from byl the pattern 4 and is directed toward the p otoelectric device 2'. In this case, the pattern 4 consists of a light absorbin portion and a light reflecting port-ion. sythe photoelectric device, an annularly shaped device 2 is employed, through the central bore of which is passed the projected light.

As will be seen from the foregoing, according to my invention, the magnets 19 are controlled by the photoelectric device 2, and the pattern on the film or glass plate will be thereby transferred directly to the sheddingsystem of the weaving loom or to thc card cutting machine, so that elaborately figured fabrics may be readily woven without necessitating the employment of the pattern cards and, in case of card cutting machines, superior cards may be manufactured, in a simple and economical manner.

What I claim is:

A photoelectrically controlled apparatus for use in looms for weaving figured fabrics and for figured-card cutting machines, comprising a source of light, a photoelectric device, controlled by the light projected through the pattern shcet,|a circuit including said photoelectric device, a source. of current, an amplifier and a relay, shedding motion hooks, a second circuit including a source of current, said relay, a contact arm arranged to be moved step by step in synchronisin with the movement of the pattern, a plurality of electro magnets and contacts with which saidcontact arm is arrangedto successively engage, the said electromagncts being each arranged to pull one of said hooks and means to push the hooks back to their original position.-

In testimony whereof I aflix my signature.

KINJIRO NAKANlSlII.

pulled there- I the hooks is shownas pulled-by the magnet the source 1' is reflected 

